GHPY files are GhPython Components compiled into an assembly. See this thread for more info.
Can’t say if this is a bug or if GHPY is not intended to be used on mac. Maybe @piac can help here 
GHPY files are GhPython Components compiled into an assembly. See this thread for more info.
Can’t say if this is a bug or if GHPY is not intended to be used on mac. Maybe @piac can help here 